The extended ptychographical iterative engine (ePIE) is widely applied in the field of ptychographic imaging due to its great flexibility and computational efficiency. A technique of ePIE with multiple axial intensity constraints, which is called MAIC-PIE, is proposed to drastically improve the convergence speed and reduce the calculation time. This technique requires that the diffracted light from the sample is propagated to the multiple individual axial planes, which can be achieved by using the beam splitter and multiple CCDs. In this technique, an additional intensity constraint is involved in the iterative process that makes for building the reasonable guesses of the probe and object in the first few iterations and accelerating the convergence. Simulations and experiments have verified that MAIC-PIE behaves good performance with fast convergence. The great performance and limited computational complexity make it a very attractive and promising technique for ptychographic imaging.

中文翻译：

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使用多个轴向强度约束的加速收敛扩展谱图迭代引擎。

由于扩展的笔迹迭代引擎（ePIE）具有很大的灵活性和计算效率，因此已广泛应用于笔迹成像领域。提出了一种具有多个轴向强度约束的ePIE技术，称为MAIC-PIE，以大大提高收敛速度并减少计算时间。该技术需要将来自样品的衍射光传播到多个单独的轴向平面，这可以通过使用分束器和多个CCD来实现。在此技术中，迭代过程涉及一个附加的强度约束，该约束使您可以在前几次迭代中建立对探针和对象的合理猜测并加速收敛。仿真和实验证明，MAIC-PIE具有良好的性能和快速收敛性。出色的性能和有限的计算复杂度使它成为用于谱图成像的非常有吸引力且很有前途的技术。